code: def _load_mne_locs(fname=None):
      """Load MNE locs structure from file (if exists) or recreate it."""
      if not fname:
          # find input file
          resource_dir = op.join(
              op.dirname(op.abspath(__file__)), "resources"
          )
          fname = op.join(resource_dir, "Artemis123_mneLoc.csv")
  
      if not op.exists(fname):
          raise OSError('MNE locs file "%s" does not exist' % (fname))
  
      logger.info(f"Loading mne loc file {fname}")
      locs = dict()
      with open(fname) as fid:
          for line in fid:
              vals = line.strip().split(",")
              locs[vals[0]] = np.array(vals[1::], np.float64)
  
      return locs
  
file_path: mne-python/mne/io/artemis123/utils.py
imports: import os.path
  import numpy
  from ..._fiff._digitization import _artemis123_read_pos
  from ...transforms import rotation3d_align_z_axis
  from ...utils import logger
label_desc: Use image node_id 1 for calling a global function with example usage: _load_mne_locs(fname) and returns: locs